KR970705739A - Displacement sensor and torque sensor (DISPLACEMENT SENSOR AND TORQUE SENSOR) - Google Patents

Displacement sensor and torque sensor (DISPLACEMENT SENSOR AND TORQUE SENSOR)

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Publication number
KR970705739A
KR970705739A KR1019970701171A KR19970701171A KR970705739A KR 970705739 A KR970705739 A KR 970705739A KR 1019970701171 A KR1019970701171 A KR 1019970701171A KR 19970701171 A KR19970701171 A KR 19970701171A KR 970705739 A KR970705739 A KR 970705739A
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South Korea
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sensor
elements
regions
array
width
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KR1019970701171A
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Korean (ko)
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KR100378576B1 (en
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스티븐 존 호톤
애드리안 레스리 트레이스
데이비드 리스
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제랄드 에이 안네트
루카스 인더스트리즈 퍼블릭 리미티드 컴퍼니
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Priority claimed from GB9417190A external-priority patent/GB9417190D0/en
Priority claimed from GBGB9503193.6A external-priority patent/GB9503193D0/en
Application filed by 제랄드 에이 안네트, 루카스 인더스트리즈 퍼블릭 리미티드 컴퍼니 filed Critical 제랄드 에이 안네트
Publication of KR970705739A publication Critical patent/KR970705739A/en
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Publication of KR100378576B1 publication Critical patent/KR100378576B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/12—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving photoelectric means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

광학 변위 센서는 함께 회전하는 두개의 샤프트(2,4) 사이의 회전 변위를 측정하는데 사용된다. 토션 바(6)를 사용하여 샤프트(2,4)를 함께 연결함으로써 센서는 전이된 토크를 측정하는데 사용될 수 있을 것이다. 센서는 샤프트(2,4) 위에 장착된 제1 및 제2동축 디스크(10,12)로 구성되고 그안에 형성된 슬롯(16,18)을 갖는다. 광원(20)은 광검출기 어레이(22) 상으로 슬롯(16,18)을 통하여 조사시키고 데이타 프로세서(24)는 슬롯 에지의 상의 어레이(22) 위의 위치로부터의 변위 또는 토크를 측정한다.The optical displacement sensor is used to measure the rotational displacement between the two shafts (2, 4) rotating together. By connecting the shafts 2, 4 together using the torsion bar 6, the sensor could be used to measure the transferred torque. The sensor is comprised of first and second coaxial disks 10, 12 mounted on shafts 2, 4 and has slots 16, 18 formed therein. The light source 20 is irradiated through the slots 16 and 18 onto the photodetector array 22 and the data processor 24 measures the displacement or torque from a position on the array 22 on the slot edge.

Description

변위 센서 및 토크 센서(DISPLACEMENT SENSOR AND TORQUE SENSOR)Displacement sensor and torque sensor (DISPLACEMENT SENSOR AND TORQUE SENSOR)

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명 실시예를 구성하는 토크 센서의 개략적 다이어그램이다. 제2도는 제1모듈레이터 디스크의 부분 평면도이다. 제3도는 제2변조 디스크의 부분 평면도이다. 제4도는 제2도에서 나타낸 형태의 두개의 디스크로 구성되는 제1배열의 평면도이다. 제5도는 제2도에서 나타낸 것 하나와 나머지는 제3도에서 나타낸 것인 두개의 디스크로 구성되는 제2배열의 평면도이다.FIG. 1 is a schematic diagram of a torque sensor constituting an embodiment of the present invention. FIG. Figure 2 is a partial plan view of the first modulator disk. 3 is a partial plan view of the second modulated disc. FIG. 4 is a plan view of a first arrangement comprising two discs of the type shown in FIG. 2. 5 is a plan view of a second arrangement consisting of two discs, one shown in FIG. 2 and the rest shown in FIG. 3.

Claims (24)

광학 방사선 광원, 방사선 검출기 어레이, 및 제1 및 제2요소로 구성되는 광학 변위 센서로서, 상기 요소들 각각은 교대의 제1 및 제2영역으로 구성되는데 이 제1영역의 광학 전이도는 제2영역보다 더 크고, 상기 제1 및 제2요소 각각은 제1 및 제2영역이 광원과 어레이 사이를 통과할 수 있도록 이동가능한 광학 변위 센서.An optical displacement sensor comprising an optical radiation source, a radiation detector array, and first and second elements, each of said elements consisting of alternating first and second regions, Wherein each of the first and second elements is movable so that the first and second regions can pass between the light source and the array. 제1항에 있어서, 광원이 접점 광원(point source)으로 구성되는 센서.The sensor according to claim 1, wherein the light source is constituted by a point source. 제2항에 있어서, 광원이 추가로 접점 광원으로부터 방사선을 확산시키는 확산기를 포함하는 센서.3. The sensor of claim 2, wherein the light source further comprises a diffuser to diffuse radiation from the contact light source. 제1항에 있어서, 어레이가 선형 어레이를 포함하는 센서.2. The sensor of claim 1, wherein the array comprises a linear array. 제1항에 있어서, 방사선 검출기가 연속적인 센서.The sensor according to claim 1, wherein the radiation detector is continuous. 제1항에 있어서, 제1 및 제2요소가 회전 요소인 센서.The sensor according to claim 1, wherein the first and second elements are rotary elements. 제1항에 있어서, 제1 및 제2요소의 제1 및 제2영역이 일정하고 동일한 공간 주기를 갖는 센서.2. The sensor of claim 1, wherein the first and second regions of the first and second elements are constant and have the same spatial period. 제1항에 있어서, 제1 및 제2요소 각각의 제1 및 제2영역이 일정한 마크/공간 비를 갖는 센서.2. The sensor of claim 1, wherein the first and second regions of each of the first and second elements have a constant mark / space ratio. 제8항에 있어서, 제1요소의 제1 및 제2영역의 마크/공간 비가 제2요소의 제1 및 제2영역의 마크/공간비와 동일한 센서.9. The sensor of claim 8, wherein the mark / space ratio of the first and second regions of the first element is equal to the mark / space ratio of the first and second regions of the second element. 제1항에 있어서, 제1영역이 제1 및 제2요소내에 형성된 슬롯을 포함하고 제2영역이 슬롯들 사이에 배치된 제1 및 제2요소들의 불투명한 위치를 포함하는 센서.The sensor of claim 1, wherein the first region comprises a slot formed in the first and second elements, and the second region comprises an opaque position of the first and second elements disposed between the slots. 제1항에 있어서, 제1 및 제2요소가 이들 사이의 상대적 이동을 막도록 강제하여 제1 및 제2요소의 제2영역들이 광원과 에레이 사이에서 겹쳐지도록 하는 센서.2. The sensor of claim 1, wherein the first and second elements force the second regions of the first and second elements to overlap each other between the light source and the array. 제1항에 있어서, 제1 및 제2요소가 분리가능하게 상호연결되어 있는 센서.2. The sensor of claim 1, wherein the first and second elements are removably interconnected. 제1항에 있어서, 제1 및 제2요소가 부술 수 있는 상호연결부로 일체화되게 형성된 센서.2. The sensor of claim 1, wherein the first and second elements are integrally formed with interconnectable interconnects. 제1항에 있어서, 제1 및 제2요소가 동일 평면상에 있는 센서.2. The sensor of claim 1, wherein the first and second elements are coplanar. 제1항에 있어서, 제1 및 제2요소가 각각 환 또는 디스크의 내부 및 외부 부분으로 구성되는 센서.The sensor of claim 1, wherein the first and second elements are each comprised of an inner and outer portion of a ring or disc. 제1항에 있어서, 예측된 수준 이상의 방사선 수준과 예측된 수준 미만의 방사선 수준 사이의 전이도를 갖는 에레이상의 위치들을 검출하기 위한 검출기를 추가로 포함하는 센서.2. The sensor of claim 1, further comprising a detector for detecting positions above the error level with a transition between a radiation level above a predicted level and a radiation level below a predicted level. 제16항에 있어서, 제1 및 제2영역과 어레이가 제1 및 제2요소의 위치에 관계없이 어레이상에 최소한 5개의 전이가 일어날 수 있도록 배열된 센서.17. The sensor of claim 16, wherein the first and second regions and the array are arranged such that at least five transitions can occur over the array regardless of the position of the first and second elements. 제16항에 있어서, 제1 및 제2요소의 상대적 변위를 측정하기 위한 위치 처리용 프로세서를 추가로 포함하는 센서.17. The sensor of claim 16, further comprising a processor for position processing for measuring relative displacements of the first and second elements. 제18항에 있어서, 상기 프로세서가 제1 및 제6전이 사이의 거리와 제1 및 제4 또는 제3 및 제6전이 사이의 거리 비의 함수로 상대적 변위를 측정할 수 있도록 배열된 센서.19. The sensor of claim 18, wherein the processor is arranged to measure a relative displacement as a function of a distance between the first and sixth transitions and a distance ratio between the first and fourth or third and sixth transitions. 제6항에 있어서, 광학 방사선의 추가 광원과 어레이에 정반대로 배치된 방사선 검출기의 추가적인 어레이를 추가로 포함하는 센서.7. The sensor of claim 6, further comprising an additional array of radiation detectors disposed opposite to the array with additional light sources of optical radiation. 제1항의 센서를 포함하고 제1 및 제2요소 사이에 탄력 결합된 토크 센서.A torque sensor comprising the sensor of claim 1 and resiliently coupled between the first and second elements. 제1항에 있어서, 제1요소가 n개의 제2영역을 포함하고 이들중 (n-1)개는 제1너비를 갖고 나머지는 제1너비와는 다른 제2너비를 갖는 센서.2. The sensor of claim 1, wherein the first element comprises n second regions, wherein (n-1) of the sensors have a first width and the remainder have a second width different from the first width. 제22항에 있어서, 제2요소가 n개의 제2영역을 포함하고 이들중 (n-1)개는 제3너비를 갖고 이들중 나머지 둘은 제3너비와는 다른 제4너비를 가지며, 제1 및 제3너비의 합은 제2너비 및 제4너비 두배의 합과 동일하며, 제1 및 제2요소를 계속적으로 이동시키기 위하여 제1요소의 제2영역의 나머지는 제2요소의 서로 다른 두개의 제2영역 사이에 배치된 센서.23. The method of claim 22, wherein the second element comprises n second regions, (n-1) of which have a third width and the other two of them have a fourth width different from the third width, The sum of the first width and the third width being equal to the sum of the second width and the fourth width twice and the remainder of the second area of the first element to move the first and second elements continuously, And a sensor disposed between the two second regions. 제4항에 있어서, 제1 및 제2요소는 회전 요소이고 어레이는 제1 및 제2영역의 상의 위치를 제1 및 제2영역의 해당 회전 위치로 전환시키는 데이타 프로세서에 연결되어 있는 센서.5. The sensor of claim 4, wherein the first and second elements are rotational elements and the array is coupled to a data processor that converts the position of the image of the first and second regions into corresponding rotational positions of the first and second regions. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019970701171A 1994-08-25 1995-08-25 Displacement sensor and torque sensor KR100378576B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9417190.7 1994-08-25
GB9417190A GB9417190D0 (en) 1994-08-25 1994-08-25 Position sensor and torque sensor
GB9503193.6 1995-02-18
GBGB9503193.6A GB9503193D0 (en) 1995-02-18 1995-02-18 Optical modulator

Publications (2)

Publication Number Publication Date
KR970705739A true KR970705739A (en) 1997-10-09
KR100378576B1 KR100378576B1 (en) 2004-04-03

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KR1019970701171A KR100378576B1 (en) 1994-08-25 1995-08-25 Displacement sensor and torque sensor

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US (2) US5841132A (en)
EP (2) EP0777851B1 (en)
JP (1) JP3725545B2 (en)
KR (1) KR100378576B1 (en)
DE (2) DE69519232T2 (en)
ES (2) ES2152420T3 (en)
WO (1) WO1996006330A1 (en)

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